firemodels
Gas phase conductivity output off
Describe the bug I was using the gas phase property outputs to do some manual calculations and noticed that the conductivity value was giving me odd results. In the simplified case (one of Validation/Convection/impinging_jet with the impinging jet correlation removed and a coarser grid) I see the behavior below. The far left image shows what I get with master. In master, DUMP uses a different call for DNS versus other SIM_MODE. In non-DNS cases the call is:
GAS_PHASE_OUTPUT_RES = MU(II,JJ,KK)*CPOPR
In the middle and right image I changed all the SIM_MODE to use the same call as DNS (see below). The middle includes the &SPEC line for air where CONDUCTIVITY is manually specified by the user. The right does not include that line.
ZZ_GET(1:N_TRACKED_SPECIES) = ZZ(II,JJ,KK,1:N_TRACKED_SPECIES)
CALL GET_CONDUCTIVITY(ZZ_GET,GAS_PHASE_OUTPUT_RES,TMP(II,JJ,KK))
Is there a reason we are calculating conductivity differently between the sim modes? Is there a big performance impact in ZZ_GET and GET_CONDUCTIVITY for LES calculations?
Screenshots
Desktop (please complete the following information):
- OS: windows
- Version: 6.9.1 release
Additional context
impinging_jet_Re_1e5_coarse.txt
Subgrid turbulence makes the conductivity effectively larger than the molecular level value.
That makes sense. The reason I was using the output was to get the molecular level value used in the Nu calculations so I could do my own approximate calculations to a fictitious surface throughout the domain. I should be able to do the same thing calculating a MOLECULAR CONDUCTIVITY using MOLECULAR VISCOSITY. Would it be beneficial to add an output for MOLECULAR CONDUCTIVITY or is this too much of an edge case?
I thnk having that output makes sense. Would just be a call to GET_CONDUCTIVITY.
